LI Yanyong, WEI Juanfang, JIANG Wenjian. Thermal Deformation Analysis and Structural Optimization of HighPrecision Reflector Engineering Models on Satellites[J]. Applied Mathematics and Mechanics, 2018, 39(6): 657-664. doi: 10.21656/1000-0887.390089
Citation: LI Yanyong, WEI Juanfang, JIANG Wenjian. Thermal Deformation Analysis and Structural Optimization of HighPrecision Reflector Engineering Models on Satellites[J]. Applied Mathematics and Mechanics, 2018, 39(6): 657-664. doi: 10.21656/1000-0887.390089

Thermal Deformation Analysis and Structural Optimization of HighPrecision Reflector Engineering Models on Satellites

doi: 10.21656/1000-0887.390089
  • Received Date: 2017-11-21
  • Rev Recd Date: 2018-04-05
  • Publish Date: 2018-06-15
  • The finite element modeling method and material parameter valuing method were presented for a 2 m diameter satellite reflector engineering model, including the honeycomb sandwich structure, the backframe tubes and the patches connecting the back frame and the reflector. The thermal deformation and the variation of pointing accuracy in unfolded work condition of the reflector under extreme high/low temperatures were analyzed. Based on the principle of minimum inorbit thermal deformation, the optimal design values of the parameters, including the section parameters of the backframe, the thickness of the backframe tubes, the connection mode and the density of patches, were obtained by means of the discrete data comparative analysis method. The structural optimization of the reflector engineering model was fulfilled.
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